/Engine/Source/Runtime/XmlParser/Public/FastXml.h
Create your own class that implements theIFastXmlCallbackinterface to process the XML elements as they are loaded byFFastXml::ParseXmlFile(). You'll receive aProcessElement()call for every XML element that is encountered, along with a correspondingProcessClose()when that element's scope has ended.ProcessAttribute()will be called for any attributes found within the scope of the current element.
class IFastXmlCallback